Dorman 577-339 Fuel Tank Filler Neck
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$354.82
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
Fuel filler neck leaking? This replacement fuel filler neck is precision-engineered and thoroughly tested to match the original filler neck for specific vehicle years, makes and models for a reliable repair.
- Direct replacement - this fuel filler neck is made to match the original equipment on specific vehicles
- Durable construction - made of corrosion-resistant materials to reduce future failure potential
- Regulatory compliant - built to meet emission and inspection standards
- Trustworthy value - backed by team of engineers and quality control experts in the United States
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 2016 | Chevrolet | Silverado 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2016 | GMC | Sierra 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2015 | Chevrolet | Silverado 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2015 | GMC | Sierra 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2014 | Chevrolet | Silverado 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2014 | GMC | Sierra 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2013 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup; DIESEL | ||
| 2013 | Chevrolet | Silverado 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2013 | GMC | Sierra 2500 HD | Extended Cab Pickup; DIESEL | ||
| 2013 | GMC | Sierra 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2012 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup; DIESEL | ||
| 2012 | Chevrolet | Silverado 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2012 | GMC | Sierra 2500 HD | Extended Cab Pickup; DIESEL | ||
| 2012 | GMC | Sierra 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2011 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup; DIESEL | ||
| 2011 | Chevrolet | Silverado 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) | |
| 2011 | GMC | Sierra 2500 HD | Extended Cab Pickup; DIESEL | ||
| 2011 | GMC | Sierra 3500 HD | Cab and Chassis; DIESEL | w/Single Rear Wheel (SRW) |
Product Specifications
| Fuel Cap Included: | No |
|---|---|
| Length: | 73 in |
| Material: | Steel |
| Outside Diameter: | 1 in |
| Package Contents: | 1 Filler Neck; 4 Hoses; 1 Ground Wire |
| Package Quantity: | 1 |
| Packaging Type: | Box |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 20942297 | GENERAL MOTORS |
| 20945941 | GENERAL MOTORS |
| 22788094 | GENERAL MOTORS |